A project’s critical path is composed of activities A (variance .33), B (variance .67), C (variance .33), and D (variance .17). What is the

Question

A project’s critical path is composed of activities A (variance .33), B (variance .67), C (variance .33), and D (variance .17). What is the standard deviation on the critical path?

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Vivian 4 weeks 2021-09-24T16:00:07+00:00 1 Answer 0

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    2021-09-24T16:01:19+00:00

    Answer:

    The standard deviation on the critical path = 0.834

    Step-by-step explanation:

    Variance of activity A (V_{1}) = 0.33

    Variance of activity B (V_{2}) = 0.67

    Variance of activity C (V_{3}) = 0.33

    Variance of activity D (V_{4}) = 0.17

    Thus the standard deviation on the critical path (\alpha ^{2}) = V_{1} ^{2} + V^2_{2} +  V^2_{3} + V^2_{4}

                                                                                 \alpha ^{2}  = 0.33^{2} + 0.67^{2} + 0.33^{2} + 0.17^{2}

                                                                                 \alpha ^{2} = 0.6956

                                                                                 \alpha = 0.834

    The standard deviation on the critical path = 0.834

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